heater return hose

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80euro Csi
Posts: 48
Joined: Wed Jul 18, 2012 9:31 pm
Location: Vancouver, WA

heater return hose

Post by 80euro Csi »

I am in need of the heater return hose for 1980 euro 635 with M90 motor. I've attached a picture since no US parts suppliers seem to know what I need.
It goes on the bottom of the heater core outlet and over to the rear of the head and attaches to a 90 degree fitting. It measures. 12" from outside to outside
heater return hose
heater return hose
2021-09-27 17.12.37 (2).jpg (751.17 KiB) Viewed 1383 times
80euro Csi
bpoliakoff
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Re: heater return hose

Post by bpoliakoff »

From what I just saw on realoem, they are still dealer available. I have an 81 euro with M90 and that is where I bought them.Looks like all 4 hoses are available
81 Euro 635 M90 with motronic. Currently under a complete nut and bolt restoration. Pictures at
flickr.com/photos/bertsphotos.
80euro Csi
Posts: 48
Joined: Wed Jul 18, 2012 9:31 pm
Location: Vancouver, WA

Re: heater return hose

Post by 80euro Csi »

I just went to realOEM, for the first time. thank you, and the number 1364770 is the input/top hose. If you happen to have the bottom or return hose number, I would appreciate it. My number is is not completely legible.
80euro Csi
bpoliakoff
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Re: heater return hose

Post by bpoliakoff »

The part numbers I see are 64211369934 for the inlet and 64211368715 for the return. Plug those into the space provided for realoem part search. I don't see any hoses with the part number you show unless I am missing something?? Also remember you have the early heater valve that looks like a large hocky puck
81 Euro 635 M90 with motronic. Currently under a complete nut and bolt restoration. Pictures at
flickr.com/photos/bertsphotos.
80euro Csi
Posts: 48
Joined: Wed Jul 18, 2012 9:31 pm
Location: Vancouver, WA

Re: heater return hose

Post by 80euro Csi »

without tearing into the interior to see my hockey puck, what I have are to approx. 5/8" tubes sticking out of the fire wall. One (top) appears to go towards left side plumbing and the bottom goes to back of head and attaches to a metal 90 degree bend. That is the hose shown at the beginning of my request.
Another thing that bothers me is that my car is listed as a M30 and it is definitely M90 motor with matching VIN's as seen on starter plate?
Attachments
inlet and outlet to heater
inlet and outlet to heater
2021-09-28 17.37.36 (2).jpg (76.44 KiB) Viewed 1358 times
top hose # 1364770
top hose # 1364770
2021-09-28 17.39.48 (2).jpg (68.99 KiB) Viewed 1358 times
80euro Csi
bpoliakoff
Platinum Member
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Posts: 3312
Joined: Thu Sep 28, 2006 9:28 pm
Location: scottsdale, arizona
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Re: heater return hose

Post by bpoliakoff »

All M90's show as M30. There is no special classification for them. All Euro 635s up to May of model year 1982 were M90's
81 Euro 635 M90 with motronic. Currently under a complete nut and bolt restoration. Pictures at
flickr.com/photos/bertsphotos.
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